The first weightlifter is able to lift a weight equal to 2000N in 2 seconds
The second weightlifter is able to lift a weight equal to 4000N in 2 seconds
Q: which weightlifter is more powerful?
Q: Why is the second more powerful?

The second weightlifter

Explanation:

The second weightlifter is more powerful because he’s lifting a heavier weight the same time it takes the first weightlifter to lift a lighter one .

from 1609, galileo galilei used the recently invented telescope to observe the sun, moon and planets. he saw the mountains and craters of the moon, and for the first time revealed the planets to be worlds in their own right. galileo also provided strong observational evidence that planets orbited the sun.

his discoveries about the moon, jupiter's moons, venus, and sunspots supported the idea that the sun - not the earth - was the center of the universe, as was commonly believed at the time.galileo turned his gaze toward venus, the brightest celestial object in the sky - other than the sun and the moon.

explanation:

the masses of the objects and the distance between them